1. Data obtained from simultaneous skeletal maturation assessments and dental status evaluations on each of 1,360 Japanese children (678 boys and 682 girls) ranging in age from six to 14 years have been presented. 2. Statistically significant differences in number of permanent teeth were demonstrated between the skeletally above average and skeletally below average children, skeletally advanced children having the greater number of teeth. At individual age levels, consistent significant differences were not found. 3. Comparisons of the terminal (extreme) segments indicated statistically demonstrable differences in a greater number of individual age groups, especially among girls. 4. At each age level, the girls had a greater mean number of erupted permanent teeth than the boys.